Influence of Urban High-density Living Environment on Stroke Risk: a Case Study of Wuhan

Abstract

基于2015年武汉市居民'脑卒中'疾病数据,运用空间回归分析方法,研究中国城市高密度居住环境对居民脑卒中的影响。实证表明,中国城市高密度居住环境对居民罹患脑卒中具有显著影响,城市中心区已经成为脑卒中的高患病风险区域。城市建成环境要素中的人口净密度、居住用地密度、建筑密度与居民脑卒中风险显著正相关;社区医院、公园、快餐店、公交车站等设施的可达性对居民脑卒中有显著影响。机制分析表明,城市建成环境通过自然环境、居民体力活动、饮食习惯和社会资本等因素,对居民脑卒中产生重要影响。研究认为,在中国健康城市规划中,应降低城市中心人口净密度与建筑密度、引导老年人口向外疏解、完善街区级公共服务设施,主动干预高密度居住环境下居民脑卒中风险。 Using the spatial regression model,this study explored the association between high-density living environment and stroke risk in Wuhan based on the disease data in 2015.The research indicated that the standardized incidence of stroke exhibited significant clustering in the urban core,and high-density built environment would significantly exacerbate the incidence of stroke.The results showed on the one hand that three density variables,i.e.,net residential density,residential land-use density,and building density,were positively correlated with the risk of stroke.On the other hand,the accessibility of community hospitals,parks,fast-food restaurants,and bus stops had an important impact on the stroke risk of urban residents.In general,air pollution,physical activity,dietary habit,and social capital played significant roles in this process.Finally,this research proposed healthy city planning strategies for stroke prevention in high-density living environment,including the land use mix model to decrease population and building density,planning strategies for the dispersal of aging population in the urban core,and improvement of public service facilities at the block level.